Optical body, window member, fitting, solar shading device, and building

a technology for solar shading and optical bodies, applied in the direction of optical elements, instruments, synthetic resin layered products, etc., can solve the problems of just specular reflection, insufficient shielding ability of pigment layers, and acceleration of phenomena, so as to improve safety, reduce heat generation, and save energy
US20120154921A1Active Publication Date: 2012-06-21DEXERIALS CORP
6 Cites 20 Cited by

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
DEXERIALS CORP
Publication Date
2012-06-21

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

An optical body includes a first optical layer having a concave-convex surface, a wavelength selective reflecting layer formed on the concave-convex surface, and a second optical layer formed on the wavelength selective reflecting layer and embedding the concave-convex surface. The wavelength selective reflecting layer selectively directionally reflects light in a particular wavelength band while transmitting light other than the particular wavelength band therethrough. The concave-convex surface is made up of a plurality of triangular pillars arrayed in a one-dimensional pattern, and the triangular pillar has an apex angle α and a slope angle β, the apex angle α and the slope angle βsatisfying a predetermined relationship.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present invention relates to an optical body, a window member, a fitting, a solar shading device, and a building. More particularly, the present invention relates to an optical body for directionally reflecting incident light.BACKGROUND ART

[0002] Recently, cases of coating a layer, which partly absorbs or reflects the sunlight, on architectural glasses for high-rise buildings and housings, vehicular window glasses, etc. have increased. Such a trend represents one of energy-saving measures with the view of preventing global warming, and it is intended to reduce a load of cooling equipment, which is increased with optical energy incoming from the sun, entering the indoor through windows, and raising the indoor temperature. The optical energy incoming with the sunlight is primarily provided in a visible range at wavelengths of 380 to 780 nm and in a near infrared range at wavelengths of 780 to 2100 nm. Because transmittance of light in the latter near infrared r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More